SIU Neurology Resident Neuroscience Course

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Chapter 28. Perception of Motion, Depth, and Form

  1. The magnocellular and parvocellular visual pathways differ with respect to
    1. Ganglion cell type
    2. Lateral genicular connections
    3. Cerebral cortical projections
    4. All of the above
  2. The magnocellular visual pathway is so called because
    1. Its ganglion cells are big
    2. It has a large projection to LGN
    3. It has large cortical blobs
    4. It gives rise to a large number of fibers in CNII
  3. The dorsal and ventral visual pathways are specialized for
    1. Motion/depth and form/color
    2. Motion/form and color/depth
    3. Texture/motion and color/apparent hardness/face recognition
    4. All of the above
  4. A patient with bilateral inferotemporal lesions is most likely to have difficulty with
    1. Detecting motion
    2. Stereopsis
    3. Recognizing faces
    4. Language (trans-infero-temporal cortical aphasia)
  5. Which of the following is thought to be most important for monocular depth perception
    1. Familiar size
    2. Linear perspective
    3. Chiarascuro
    4. Motion parallax
  6. The first level of the visual system at which single cells respond to both eyes is the
    1. Ganglion cell
    2. Optic chiasm
    3. Lateral genicular nucleus
    4. V1 cortex

Chapter 29. Color Vision

  1. Cones in the retina are highly "tuned" to light of the colors
    1. Red, green, and blue
    2. Red, green, and long-wave UV
    3. Red, green (in dichromats)
    4. Different cone types have different spectral sensitivity, but none could be considered highly "tuned"
  2. The "opponent mechanism" suggested by Hering involved transmission of information in three "channels" consisting of
    1. Red/green, blue/yellow, achromatic brightness
    2. Red, green , blue
    3. Red/blue-green, violet/red, achromatic brightness
    4. RGB signals are transmitted in one channel
  3. Which cone is most rare?
    1. M
    2. P
    3. S
  4. The part of cerebral cortex most important specifically for color vision in humans is likely to be
    1. Temporal cortex
    2. Parietal cortex
    3. Occipital cortex
    4. Blob cortex
  5. Color blindness is usually caused by
    1. Loss of cones
    2. Loss of specific visual pigments
    3. Bilateral inferotemporal lesions
    4. The binding problem


This is an open-book test due 1/22/2002
A score of 80% or better is required. If your score is less, you are required to retake the test.

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